In this code snippet, why does the compiler not allow the value of y to change? For(y in 1..100) y+=2

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Question:In this code snippet, why does the compiler not allow the value of y to change? For(y in 1..100) y+=2

1.Y must be declared with var to be mutable

2.Y is an implicitly immutable value

3.Y can change only in a while loop

4. In order to change y, it must be declared outside of the loop

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  1. In this code snippet, why does the compiler not allow the value of y to change? For(y in 1..100) y+=2
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